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J. B. TYNAN. MACHINE FOR ROLLING THE VALVES 0F LOCOMOTiYES.

' APPLICATION FILED OCT, 22, 1920. 1,365,958. Patented Jan. 18,1921.

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APPLICATION FILED OCT. 22. I920.

Patented Jan. 18, 1921.

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so that the roller ma PATENT OFFICE.

JOHN B. TYNAN, OF BREWSTER, OHIO.

MACHINE FOR ROLLING THE VALVES OF LOCOMOTIVES.

Specification of Letters Patent.

Patented Jan. 18, 1921.

Application filed October 22, 1920. Serial No. 418,853.

T 0 all whom it may concern Be it known that 1, JOHN B. TYNAN, a citizen of the United States, residing at Brewster, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Machines for Rolling the Valves of Locomotives, of which the following is a specification.

My invention relates to a new and useful improvement in machines for rolling valves of a locomotive and has for an object to provide a machine that may be quickly placed in position so that a portion thereof extends under the drive wheels, and, without removing the weight from the wheels they may be slowly revolved so that the valves may be accurately positioned in relation thereto.

Another object ofmy invention is to provide a machine that is relatively light and fiexible, powerful in operation, and capable of revolving the largest drive wheels in less than two minutes while at the same time so arranged that when properly handled can catch points on the valves as close as one Still another object of my invention is to provide a machine wherein the outer roller is driven through a shaft in which there are two universal joints and an extension sleeve, be correctly alined beneath the driving w eel.

Still another object of my invention is to provide a machine that is relatively small in size, very compact and so geared that a relatively small motor, only, will be neces sary; and to provide a machine that may be quickly moved about the roundhouse when desired. 1

With these and other objects in view my invention relates to certain new and novel construction and arrangement of parts as will be hereinaftermore fully described and pointed out in the claims.

Referring now to the drawings showing a preferred form of my invention Figure 1 is a top plan view of the same;

Fig. 2 is a side elevation;

Fig. 3 is a transverse sectional view taken on line 3.-3 of Fig. 1;

Fig. 4 is a detail elevation of a portion of the gear mechanism from the opposite side of Fig. 1;

Fig. 5 is a longitudinal sectional view of the central portion of the main drive shaft;

Fig. 6 is a detail View of the rollers, the dotted lines showing the outline of the drive wheel.

Referring now in detail to the drawings, there is shown a base 1, on which is mounted at its outer end a standard 2 which supports an electric control box 3. Also securely bolted to the base 1, is the electric motor 4, which should be of about five horse power and capable of being reversed.

Secured on the base 1 is the cross beam or plate 5, to which is securely bolted the up rights or standards 6, to the outer one of which in turn is bolted the cross arm 7. Near the opposite ends of the cross arm 7 are positioned the roller bearings 8 and 9, a shaft 10 of the motor extending within the one bearing 8, while one end of the shaft 11, which will be hereinafter mentioned, is supported in the other bearing 9.

Also secured to the base 1 and extending longitudinally of the same is the housing 12 which is provided with the-relatively long bearing 13, for the reception of the main drive shaft 14, and a long cross bearing 15 is provided for the reception of the aforementioned shaft 11.

An upper plate 16 is shown which is secured to the upper portion of the housing 12, which plate also forms the cap portion of the cross bearing 15, and is bolted in place to permit easy access to said bearing.

Secured centrally of the standards 6 is a short shaft on' which is mounted the sleeve 17 and on this sleeve is rigidly secured the pinion and gear 18 and 19 respectively. A

pinion 2.0 is shown mounted on the shaft 10 mounted near the end of the cross shaft 11.

Located on the said shaft 11 is the worm 22 which is designed to drive the main drive shaft 14 through the worm gear 23 mounted on its inner end. Thrust bearings 24 are shown at the opposite ends of the cross bearing 15, while the outer end of the shaft is designed for the reception of a handle should it ever be desired to use one.

Referring now to the housing 12, it will be noticed that formed at its outer end is a support 25 for the roller 26, this support being in the form of a chuck. This chuck consists of the base and the two lugs 27 in which are mounted roller bearings 28 to support the shaft 14 and its roller 26.

Extending laterally of the base is the opening 29 on one side and the lug 30 on its other for the reception of the adjusting rods 31 and 32 which extend to a similar support or chuck 33. The aforementioned roller 26 is securely fastened to the main drive shaft 14 and is knurled so that it will not slip when contacting with the periphery of the drive wheel to be turned.

A similar roller 34 is mounted in the chuck 33 but in this instance of course it is on a short shaft, as shown in the drawings.

Referring again to the main drive shaft 14 it will benoticed that at the outer end thereof is secured a yoke 35 which is pinned to a yoke 36, the body portion of the yoke 36 slidingly fitting within a sleeve 37, the two yokes thus forming a universal joint, and the sliding sleeve allowing for any difference in the width of the track. Of course, any other form of desired universals might be used and the one set out is by way of illustration only.

Secured at the other end of the sleeve 37 is pinned a further portion of a universal joint 38 which is connected to the short bearing shaft 39 which is mounted in a chuck 40. This chuck i similar to the others in that it has mounted therein the roller 41 and is provided with openings for the reception of the adjusting rods 42, the only difference being that the shaft 39 is somewhat longer and provided with a portion of a universal joint as mentioned. The base is also slightly grooved on its under surface so as to center with the track 43 shown in dotted lines. A further chuck 44, with roller 45, is shown which is connected by the aforementioned rods 42.

Suitable bolts 46 are provided for all of the rods so that when the rods are drawn up they may be locked in position until the Work set out is accomplished. The operation of the machine is simple and as follows: The machine will be first moved to the locomotive and set to one side of the drive wheels,'the roller 26 being positioned directly beneath the drive wheel on the near side and the outermost chuck 40 with its roller 41 set directly beneath the opposite drive wheel, the flexible connections making it possible to accurately position this roller.

The chuck 33 with the roller 34 therein will be positioned on the opposite side of the near drive wheel, while chuck 44 and roller 25 will be similarly positioned beneath the far drive wheel.

The adjusting rods 31 and 32 and the adjusting rods 42 will then be tightened by pulling up on the nuts 46 until the main wheels are clamped between the four rollers.

The motor will then be started which will slowly turn the rollers 26 and 41 through the train of gears and pinions 20, 19, 18 and 21, the worm on the shaft 11 in turn revolving the worm gear 23 mounted on the main drive shaft 14, while the outer roller of course will. be driven through the sleeve 37 and shaft 39.

It will be noticed by providing these reducing gears that the drive wheels may be revolved so slowly that the valves may be adjusted to a fractional part of an inch, in fact they may be adjusted as determined by use to one thousandth of an inch. Also with the machine as shown the drive wheels of a locomotive 76 inches in diameter have been revolved in one minute and forty seconds.

From the foregoing it will be seen that l, have provided a machine that is very compact in nature, relatively strong. quickly and readily adjustable, and flexible in that the outer roller may be accurately positioned due to the universal connections, and any variance in the width. of the track being allowed for by the extensible sleeve.

Furthermore much time may be saved, it not being necessary to remove the weight from the wheels, and at the same time the efiiciency is such that the minutcst adjustments of the valves may be made.

It is understood that many changes mi ght be made as to the adjustments of parts or relative locations or forms of chucks without in any way departing from the spirit and scope of the invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

'1. A valve rolling machine for locomotives comprising a base, a main drive shaft mounted on said base, a roller adapted to be placed against the periphery of a drive wheel and said roller driven by said drive shaft, a second roller to be placed against the periphery of the oppositely located drive wheel, said roller connected to the main drive shaft through a flexible connection, further rollers to be secured behind the said drive wheels, and means for driving said main drive shaft.

2. A machine for turning the drive wheels of a locomotive comprising a base, a drive shaft mounted on said base, two sets of chucks to be positioned under the drive wheels of the locomotive, said chuclits provided with rollers therein, two of said rollers driven from said drive shaft, one of said. rollers having a flexible connection with said drive shaft, and means for revolving said drive shaft.

3. A machine for rolling the valves of a locomotive comprising a base, a motor on said base, a housing on said base and a drive shaft located in said housing, a gear train between said motor and said drive shaft, two laterally adjustable chucks for positioning under the drive wheels of the locomotive, rollers in said chucks and driven by said drive shaft, further chucks for positioning behind the drive wheels, and rods c0nnecting the two sets of chucks for clamping them in position.

4t. A machine for slowly revolving the drive wheels of a locomotive comprising a base, a housing mounted on said base, a drive shaft mounted in said housing, a cross shaft provided with a worm thereon and a worm gear on said drive shaft and meshing with said worm, a motor, reducing gears between said motor and said cross shaft, two sets of chucks provided with rollers therein, the rollers in two chucks being driven by said drive shaft and adjustable means between the sets of chucks.

5. A machine for turning the drive wheels of a locomotive so that the valves may be timed comprising a base, a motor mounted on said base, two uprights and a cross arm, a housing also mounted on said base, a cross shaft mounted in said housing and in said cross arm, a worm gear mounted on said drive shaft and a worm on said cross shaft for operating the same, reducing gears mounted on said cross arm and said uprights and connected to said motor and said cross shaft, two sets of chucks provided with roll ers, said rollers adapted to contact with the periphery of the drive wheels, two of said rollers driven by said drive shaft and the other two mounted idly in the chucks and means for clamping the chucks beneath the drive wheels.

6. A machine for turning the drive wheels of a locomotive so that the valves may be timed comprising a base, a motor mounted thereon, a housing mounted on said base comprising a bearing, a main drive shaft mounted in said bearing and a worm gear on the inner end thereof, a cross shaft provided with a worm for revolving said worm gear, supports mounted on said base and re ducing gears mounted in said supports con necting the motor with said drive shaft, two sets of chucks provided with rollers to be positioned beneath the drive wheels of the locomotive, two of said rollers driven by the drive shaft, a universal joint between the drive shaft and one of the rollers, and means for clamping the chucks beneath the drive wheels.

7. A machine for rolling the valves of a locomotive comprising a base, a drive shaft mounted on said base, a roller adapted to be placed against the periphery of a drive wheel, a second roller adapted to be placed against the opposite drive wheel, and ex tensible means connecting the said rollers, both of said rollers driven by said drive shaft, and means for operating the drive shaft.

8. A machine for rolling the valves of a locomotive comprising a base, a drive shaft mounted on said base, a chuck mounted on said base and adapted to extend beneath the drive wheel of a locomotive, a roller mounted in said chuck, a second chuck provided with a roller adapted to extend beneath the oppositely located drive wheel, universal and extensible connections be tween the two said rollers, two further chucks adjustably connected to the aforementioned chucks and provided with rollers adapted to engage the said drive wheels, a motor, reducing gears between said motor and said drive shaft to thereby slowly revolve the said rollers.

In testimony whereof I aflix my signature.

JOHN B. TYN AN. 

